UPDATE: My friend Brenda ran to do this deal and reported back that her local store had bags on sale 2 for $20, but that she had to buy two bags to get the sale price. So if that happens to you, here's the math:

Buy two bags for $20.

Use two $8 off coupons.

Pay $4 out of pocket for both bags, or $2 each!

If you don't have dogs in the house, consider donating to your local animal shelter or picking up a bag as a gift for a friend or family member! I personally love it when people gift me items for my furkids. ❣